Sustainable development relies on efficient energy consumption and environmental protection. The construction industry accounts for a significant portion of global energy consumption. Concrete, as the most commonly used construction material, can play an important role in reducing global energy consumption owing to its thermal properties and its capacity for using waste materials as mix ingredients. In this study, the use of porcelain ceramic tile waste (PCTW) as a replacement for natural fine and coarse aggregates in concrete, both individually and in combination, was investigated. The thermal conductivity, compressive strength, density and water absorption of concretes made with PCTW aggregate were investigated in a series of novel experiments using 77 specimens prepared from 11 concrete mix designs. Compared with conventional concrete, it was found that the use of non-recyclable porcelain waste reduced the heat penetration rate by about 10.8°C, reduced the thermal conductivity by 38% and increased the compressive strength by 42%.

中文翻译：

---

含有瓷砖废料细骨料和粗骨料的混凝土的热力学性能

可持续发展依赖于高效的能源消耗和环境保护。建筑业占全球能源消耗的很大一部分。混凝土作为最常用的建筑材料，由于其热性能和利用废料作为混合成分的能力，可以在减少全球能源消耗方面发挥重要作用。在这项研究中，研究了使用瓷质瓷砖废料 (PCTW) 作为混凝土中天然细骨料和粗骨料的单独和组合替代品。在一系列新颖的实验中，使用从 11 种混凝土配合比设计制备的 77 个样本，研究了由 PCTW 骨料制成的混凝土的导热性、抗压强度、密度和吸水性。与普通混凝土相比，